Home / 10,820.16-16,242.36-8,384.34

Finding the Fourth Proportional to 10,820.16, 16,242.36 and 8,384.34

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Solution

The fourth proportional to 10,820.16, 16,242.36 and 8,384.34 is: 12,585.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,820.16 : 16,242.36 = 8,384.34 : x
  2. Step 2: Convert to fraction form
    10,820.16/16,242.36 = 8,384.34/x
  3. Step 3: Cross multiply
    10,820.16x = 16,242.36 × 8,384.34
  4. Step 4: Simplify right side
    10,820.16x = 136,181,468.64
  5. Step 5: Solve for x
    x = 136,181,468.64/10,820.16
  6. Step 6: Final answer
    x = 12,585.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.